I'm using two screens on Yosemite 10.10.4. When I change desktops, I have to change manually for first screen and then again for the second.
Is there any way to change both screens at once? Or make ...

I'm thinking to get an external monitor for my MacBook Pro Retina display (late 2013 model).
What I would like to have is to get a 4K monitor or QHD monitor (Dell U2515H or P2715Q).
What I'm worried ...

I recently connected an HP w19e monitor to my mac (running on OS X 10.9.5). I used a VGA to Mini DisplayPort Adapter and it connected fine, but when I shut down the mac and than restarted it, unless I ...

I just got my MacBook Pro with Retina yesterday and I bought a Mini DisplayPort to VGA Adapter to setup dual monitor, it worked fine.
Today I tried to connect Retina with my external monitor, I tried ...

I have a mid 2015 MacBook Pro, and I want to run three external monitors - it only seems to power 2 of them. I can seem to run any combination but only two. I am powering them through 1 X thunderbolt ...

I have a Macbook Pro (Late 2013) running OSX El Capitan. I'm trying to mirror the display on a LG M2035A. The monitor only accepts VGA input. So, I purchased a HDMI to VGA converter, to connect to the ...

I recently got a Dell U2412M monitor. I'm attempting to connect it to my 2013 Retina MacBook Pro using a DisplayPort to Mini DisplayPort cable. I repeatedly get a "Entering Power Saving Mode" dialog ...

Kind of hard to describe. Using a mac with two monitors.
I use a lot of terminal windows at work (4 on my left monitor, main desktop screen", and 4 on my right monitor but on the secondary "desktop ...

I have an iMac running at 1920x1080 resolution with a second monitor connected that is running 1920x1200 resolution.
Whenever I enable "Mirror Displays", OS X Yosemite 10.10.4 (14E46) will always set ...

I have read some topics on here regarding the title. It sounds like, for the most part, running two displays from a single Thunderbolt 2 port doesn't really create an extended desktop, but a stretched ...

I'd like to press a key combo to get my computer to the lock screen. In Windows the shortcut was Windows key + L. On Mac I press CMD+ALT+Power which turns the laptop off and puts it into sleep. I want ...

I have a Macbook Pro Retina mid 2014 running OSX Yosemite (10.10.1). I have connected an external 4k monitor (Samsung U28D590D), but I'm struggling to set the correct resolution. When I open "display" ...

I have a late 2013 Macbook Pro with both the Intel Iris Pro integrated graphics and the NVidia Geforce 750M dedicated GPU. I run two 4k displays, one at 60Hz through a thunderbolt bolt and one at 30Hz ...

What would be the 'best' way to connect the 2015 Retina MacBook Pro to a Dell U2715H monitor? If I wanted to use the monitors USB 3.0 ports and also output sound to a Dell soundbar, how many cables ...

I am trying to switch from using my desktop to my macbook pro as my primary machine.
I have 2 monitors (each 1600x1200 resolution) I'd like to use as external monitors for my macbook pro (from 2013). ...

Is that possible to replace the existing graphic card of a Macbook Pro (Mid 2010, Mini DisplayPort, GPU: NVIDIA GeForce GT 330M) for a graphic card that could support 2 screen output?
Or else is it ...

Is there a way to specify what resolution I want my external monitor to be?
I have been looking around the internet for a few weeks, but I have not found a solution that works.
The native resolution ...

I don't know why i can't seem to find any info about this or even anyone asking the same question. I have an iMac and a new iPad. I want to mirror my Mac display on the iPad, so I can sit in another ...

Since upgrading to Yosemite I've been having issue with OS X creating additional desktops on my main monitor for no apparent reason. I usually have 3 different desktops setup on my main monitor and ...

I have a late 2011 13″ MacBook Pro with OS X Mavericks updated to the latest version, which was usually connected to a HP Pavillon 23xi monitor using a Mini DisplayPort to VGA adapter. It worked like ...

I have an application I use on an external monitor with an external USB device.
Is there a way to close the lid and continue using the app on the external monitor?
I turned off the sleep upon close ...

I am currently using HDMI to DVI adapter to my pavilon .27 xi IPS monitor.(1920x1080) . I wish to hook up a second Samsung Syncmaster 2243 Monitor from mDP to DVI. I was told of getting an active mDP ...

I have a dual monitor setup (iMac + Thunderbolt Display). The System Preferences > Sound > Output setup only allows me to choose between one or the other monitor. This causes the sound to come only ...

I just want to know if someone has tested if an external monitor works at 2560x1440 with an iMac 21.5" Late 2009 connected via Mini Displayport - Displayport cable. I can't find anything certain on ...

Recently I purchased an HDMI to VGA adapter that actually converts the digital signal to an analog VGA signal to connect a computer to an external monitor. It works perfectly with a Windows PC that I ...

I'm using an iMac 11,3 (27 inch, mid 2010) with an external display (an NEC EA232WMi).
Over the past week or so (beginning just prior to 10.9.2), when the iMac's display sleeps, the external display ...